Alert archive / Pennsylvania / Severe Thunderstorm Warnings / 2011
Severe Thunderstorm Warnings in Pennsylvania, June 2011
91 severe thunderstorm warnings in June 2011. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in June 2011. Tap one for its archive.
- Severe Thunderstorm Warnings
- 91
- Busiest day
- June 9, 201128 severe thunderstorm warnings
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 9:17 AM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter, Warren | 73 min |
| Jun 1, 10:23 AM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 52 min |
| Jun 1, 11:48 AM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan | 57 min |
| Jun 1, 12:30 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Wyoming | 45 min |
| Jun 1, 12:42 PM EDT | Severe Thunderstorm Warning | BGM | Luzerne | 63 min |
| Jun 1, 12:56 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 60 min |
| Jun 1, 1:42 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Lancaster, Lebanon, Perry | 63 min |
| Jun 1, 1:57 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe, Northampton | 63 min |
| Jun 1, 2:21 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 54 min |
| Jun 1, 2:32 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Franklin, Fulton | 32 min |
| Jun 1, 2:42 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Lehigh | 52 min |
| Jun 1, 3:08 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 16 min |
| Jun 1, 3:22 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 53 min |
| Jun 1, 3:41 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 34 min |
| Jun 1, 4:15 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 45 min |
| Jun 1, 4:55 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 26 min |
| Jun 4, 12:02 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 58 min |
| Jun 4, 12:37 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 38 min |
| Jun 4, 12:47 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Warren | 58 min |
| Jun 4, 12:54 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson, Venango | 66 min |
| Jun 4, 1:21 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk | 39 min |
| Jun 4, 1:43 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Jefferson, Venango | 51 min |
| Jun 5, 7:28 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Northumberland, Schuylkill | 51 min |
| Jun 5, 8:06 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 39 min |
| Jun 5, 8:31 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 25 min |
| Jun 5, 8:42 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 93 min |
| Jun 7, 6:56 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 64 min |
| Jun 7, 7:49 AM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Lawrence, Mercer, Venango | 56 min |
| Jun 7, 8:43 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence, Mercer | 47 min |
| Jun 7, 9:24 AM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 51 min |
| Jun 9, 1:47 PM EDT | Severe Thunderstorm Warning | CTP | Potter, Tioga | 88 min |
| Jun 9, 2:11 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 64 min |
| Jun 9, 2:51 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 54 min |
| Jun 9, 2:55 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 65 min |
| Jun 9, 2:55 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Clearfield | 2 hr |
| Jun 9, 2:59 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Clearfield | 61 min |
| Jun 9, 3:01 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna, Wayne | 59 min |
| Jun 9, 3:28 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 77 min |
| Jun 9, 3:28 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Washington, Westmoreland | 62 min |
| Jun 9, 3:47 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Lackawanna, Pike, Susquehanna, Wayne, Wyoming | 88 min |
| Jun 9, 3:47 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan, Tioga | 58 min |
| Jun 9, 4:26 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Pike, Wayne, Wyoming | 79 min |
| Jun 9, 4:41 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 64 min |
| Jun 9, 4:59 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Union | 46 min |
| Jun 9, 5:06 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, York | 54 min |
| Jun 9, 5:09 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Northumberland, Perry, Schuylkill, Snyder | 66 min |
| Jun 9, 5:40 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Perry, York | 65 min |
| Jun 9, 5:41 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland, Schuylkill, Sullivan | 64 min |
| Jun 9, 5:43 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 62 min |
| Jun 9, 5:45 PM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne | 45 min |
| Jun 9, 5:53 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Dauphin, Franklin, Lancaster, Lebanon, York | 112 min |
| Jun 9, 5:53 PM EDT | Severe Thunderstorm Warning | CTP | Somerset | 37 min |
| Jun 9, 6:15 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 45 min |
| Jun 9, 6:24 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 66 min |
| Jun 9, 6:44 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more | 61 min |
| Jun 9, 7:24 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 36 min |
| Jun 9, 7:27 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery | 48 min |
| Jun 9, 7:42 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Montgomery, Philadelphia | 33 min |
| Jun 9, 8:10 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 65 min |
| Jun 10, 3:35 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Clearfield | 55 min |
| Jun 10, 4:23 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Clearfield, Huntingdon, Mifflin | 82 min |
| Jun 10, 5:33 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Perry, Snyder, Union | 57 min |
| Jun 11, 6:09 PM EDT | Severe Thunderstorm Warning | BGM | Susquehanna | 51 min |
| Jun 11, 6:30 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 45 min |
| Jun 11, 6:44 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon | 61 min |
| Jun 11, 7:42 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 63 min |
| Jun 11, 7:52 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 68 min |
| Jun 11, 8:22 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 53 min |
| Jun 11, 8:41 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 79 min |
| Jun 12, 1:30 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Perry | 60 min |
| Jun 12, 2:02 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 58 min |
| Jun 12, 2:06 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 1 more | 54 min |
| Jun 12, 2:56 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Dauphin, Lancaster, Lebanon, York | 79 min |
| Jun 16, 3:59 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 61 min |
| Jun 16, 5:19 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 56 min |
| Jun 17, 1:48 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 57 min |
| Jun 17, 5:09 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Somerset | 55 min |
| Jun 21, 10:29 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence, Washington | 46 min |
| Jun 21, 11:13 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer | 47 min |
| Jun 22, 12:25 AM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna | 22 min |
| Jun 22, 2:53 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 67 min |
| Jun 22, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 53 min |
| Jun 23, 6:25 AM EDT | Severe Thunderstorm Warning | BGM | Lackawanna, Luzerne, Pike, Wayne | 65 min |
| Jun 23, 8:21 AM EDT | Severe Thunderstorm Warning | PHI | Monroe | 24 min |
| Jun 23, 8:54 AM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 81 min |
| Jun 23, 4:11 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Forest, Jefferson | 64 min |
| Jun 23, 9:15 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Perry | 60 min |
| Jun 24, 2:32 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 43 min |
| Jun 24, 4:20 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 55 min |
| Jun 28, 7:14 PM EDT | Severe Thunderstorm Warning | BGM | Bradford | 46 min |
| Jun 28, 7:40 PM EDT | Severe Thunderstorm Warning | BGM | Bradford, Susquehanna, Wyoming | 50 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Monroe County10
- Dauphin County10
- Lancaster County10
- Lebanon County10
- York County10
- Susquehanna County9
- Bradford County8
- Perry County7
- Bucks County7
- Northampton County6
- Berks County6
- Chester County6
- Montgomery County6
- Lackawanna County5
- Luzerne County5
- Wyoming County5
- Carbon County5
- Schuylkill County5
- Wayne County5
- Clearfield County5
- Lawrence County5
- Columbia County4
- Cumberland County4
- Adams County4
- Lehigh County4
- Clarion County4
- Northumberland County4
- Mercer County4
- Cambria County4
- McKean County3
- Potter County3
- Lycoming County3
- Sullivan County3
- Franklin County3
- Erie County3
- Crawford County3
- Jefferson County3
- Venango County3
- Armstrong County3
- Beaver County3
24 more counties
- Blair County3
- Pike County3
- Philadelphia County3
- Warren County2
- Fulton County2
- Elk County2
- Forest County2
- Butler County2
- Tioga County2
- Fayette County2
- Washington County2
- Montour County2
- Union County2
- Snyder County2
- Somerset County2
- Delaware County2
- Mifflin County2
- Cameron County1
- Indiana County1
- Westmoreland County1
- Centre County1
- Huntingdon County1
- Juniata County1
- Bedford County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.